Continuous and controlled directional water transportation on a hydrophobic/superhydrophobic patterned surface
Continuous and controlled directional water transportation on a hydrophobic/superhydrophobic patterned surface
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疏水/超疏水图案表面上连续且受控的定向水输送
DOI：
10.1016/j.cej.2018.07.073
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发表时间：
2018-11
影响因子：
15.1
通讯作者：
Wang Yu-Zhong
中科院分区：
文献类型：
--
作者：
Xu Chen;Feng Rui;Song Fei;Wu Jia-Min;Luo Yu-Qiong;Wang Xiu-Li;Wang Yu-Zhong
水流的定向输送是自然界中常见的现象，它不仅对生物具有重要意义，而且对先进的科学技术有着重要的要求。在一般具有亲水/超疏水模式的化学非均质表面上，对单个液滴的运动操纵有许多贡献。因此，由于亲水性区域的存在，液滴滞留是难以避免的，并且水流的连续输送仍然是一个挑战。在这里，疏水/超疏水的图案表面，具有化学均匀性的特点，是通过一个简单的涂层在一个形态不均匀的表面上发展。这种表面可以引导水的连续运动，并阐明了表面模式与运动可控性之间的关系。此外，还探讨了图案膜作为不同液滴的微混合装置的潜在应用。这一发现和结果对推进微流体和微芯片的更多应用具有重要意义。
Directional transportation of water flow, which is frequently seen in nature, is of not only great importance to organisms but also crucial demand for advanced science and technologies. Numerous contributions have been dedicated to the motion manipulation of single drops on chemically heterogeneous surfaces, which have hydrophilic/superhydrophobic patterns in general. Drop retention is therefore difficult to avoid due to the hydrophilic regions, and continuous transportation of water flow still remains a challenge. Here, a hydrophobic/superhydrophobic patterned surface, featured with chemical homogeneity, is developed via a simple coating on a morphologically heterogeneous surface. Such surface can guide the continuous water motions, and relationship between the surface patterns and the motion controllability is clarified. Additionally, the potential application of the patterned films is explored as a micro-mixing device for different drops. The finding and results are essential for advancing more applications of microfluidics and microchips.
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影响因子：
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通讯作者：
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